1. Nisar PJ, Scholefield JH (2004) Casebook: anal pain. Practitioner 248: 312–319
2. Bascom JU (1998) Pudendal canal syndrome and proctalgia fugax: a mechanism creating pain. Dis Colon Rectum 41: 406
3. Potter MA, Bartolo DC (2001) Proctalgia fugax. Eur J Gastroenterol Hepatol 13: 1289–1290
4. Amarenco G, Lanoe Y, Ghnassia RT, Goudal H, Perrigot M (1988) Syndrome du canal d’Alcock et neuralgie perinéale. Rev Neurol 144: 523–526
5. Shafik A (1991) Pudendal canal syndrome. Description of a new syndrome and its treatment. Report of seven cases. Coloproctology 13: 102–109